212211119977 has 2 divisors, whose sum is σ = 212211119978. Its totient is φ = 212211119976.

The previous prime is 212211119971. The next prime is 212211120001. The reversal of 212211119977 is 779911112212.

212211119977 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207312659856 + 4898460121 = 455316^2 + 69989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212211119977 is a prime.

It is not a weakly prime, because it can be changed into another prime (212211119971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105559988 + 106105559989.

It is an arithmetic number, because the mean of its divisors is an integer number (106105559989).

Almost surely, 2^212211119977 is an apocalyptic number.

It is an amenable number.

212211119977 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211119977 is an equidigital number, since it uses as much as digits as its factorization.

212211119977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 43.

The spelling of 212211119977 in words is "two hundred twelve billion, two hundred eleven million, one hundred nineteen thousand, nine hundred seventy-seven".